Fountain-pen.



y PATENTED JAN. l0, 1905. J. H. CROWELL.

FOUNTAIN PEN.

APPLIUATION FILED APB.. 2, 1904.

Y Y JNYEN In; u? if @M M UNITED STATES Patented January 1o, 1905.

PATENT OFFICE.

FouNTAlN-PEN.

SREIFICATION forming part of Letters Patent N o. 779,692, dated January 10, 1905. .Application led Api-i12, 1904. Serial No. 201,286.

To @ZZ whom it may con/cern.'r

Be it known thatI, J oHN H. CRowELL, a citizen of the United States, residing at Vineyard Haven, in the county of Dukes and State ofA Massachusetts, have invented a new and useful Improvement in Fountain-Pens, of which the following is a'speciiication.

My invention relates especially to that class of pens provided with a fountain or reservoir for supplying the ink to the pen.

Thelobject of the invention is to insure a better' control of the ink-supply and to prevent leakage of the ink from the reservoir.

To this end the invention consists in the novel construction of the reservoir and the operating devices for the same whereby the I the upper end of the fountain-pen, showing the operating-post and its locking device on an enlarged scale. A

Similar numerals refer to' similar parts throughout the several views.

In the drawings, 1 indicates an open-ended cylindrical sleeve, and 2 the pen-holder, which serves as a plug by which one end of the sleeve lis closed. 1t has the shoulder 3 beary ing on the end of the sleeve 1, the cylindrical plug 4 closely fitting in the sleeve 1, and the sleeve 5, on which one end of the elastic tube 6 is hermetically secured on one end and the tapering pen-support 8 on the other end, said sleeve 5 being beveled on -its inner end 7 to serve as a valve-seat for the valve 9. The pen-holder 2 is perforated longitudinally at 7 2 73. Into the outer end of said perforation 7 3 any of the well-known forms of ink-feeding tubes or ducts, as 2', can be inserted that wlll convey the ink from the reservoir 23 to the pen 10, held by the support 8.- Within the other end of the sleeve 1, which for a short distance from said end longitudinally 'has its wall at 12 thickened and screw-thread-l ed on the, inside, is inserted part of the operating-post 11. The inserted plain-surfaced portion of the post 11, excepting stud 13, ,fits sleeve l with a sliding fit. That portion of the post 11 extending beyond the sleeve 1 serves to turn the post and may be formed into a head. The cylindrical stud 13 on the inner end of the post 11 forms the support for and is hermetically secured to the corresponding end of the elastic tube 6.

Rod 14 in the reservoir 23 at one end is secured to or, as in the present instance, for illustration, made integral with stud 13` The other end of said rod 14 is provided with or has constructed on it the valve 9, preferably of'rubber, which is held 'firmly on its seat 7 by the expansion of the spiral spring 17 against the inner shoulder of the thickened wall 12 and the flange 1'6 on the operatingpost 11, which carries with it the said valve. The ends of the spring 17, bearing against the iiange 16 and the shoulder 12, exerts'sufficient resistance to the turning of the operating-post 11 within the sleeve 1 to prevent accidental disturbance of the adjustment of said post. On aportion of the operating-post 11 inside of sleeve l is formed the'male screw-thread 15, which fits and when required is screwed into the female screw 18. Through the wall 1,2, at the end of sleeve ,1, is formed the longitudinal groove or slot 19, out of and into which slides the pin or key 20 by means of the longitudinal movement of 'the operating-post 1l, to which said pin is attached. On the end of sleeve 1 i'sformed thespiral cam 21, having the same' pitch as the male and female screws 15 and 18, with its spiral face beginning at one side of the groove 19 and ending at the shoulder 22 on theother side of said groove. The inkreservoir 23 of the pen consists of portions of stud 13 and sleeve 5 and a section of the elastic tube 6, supported by the operating-post 1l and pen-holder 2 and held in place by the sleeve 1. Cap 24 (shown by broken lines in Fig. l) is common tofountain-pens and is constructed to fit onto either end of the sleeve 1.

To enable 'others skilled `in the art to use my improved fountain-pen, I will describe the operation of the same more fully. When the reservoir 23 of the pen is to be v54 filled with ink, the operating-post 11 is drawn out of the sleeve l until it is stopped by the end of the male screw-thread 15 coming m contact with the inner end of the female screw-thread 18. In the meantime the pin 2O Io by the same movement of the post 11 has been drawn out of and free from that side of the groove 19 opposite the shoulder 22, the spiral spring 17 has been compressed, the elastic portion of the wall of the ink-reservoir 23 I elongated, and the valve 9 moved ofi from its seat 7. The operating-post 11 is now in a position to be tu rned forward in the sleeve 1 and can only be turned forward in the direction of the arrow shown in Fig. 3, as the shoulder 2o 22 prevents its being turned in the opposite direction. The turning of post 11 brings the pin 20 in sliding contact with' the spiral face of the cam 21, which imparts to said post 11 a longitudinal movement which, combined 2 5 with the turning movement of said post, causes the male screw-thread to catch into and 4 follow the thread of the female screw 18,-

' thereby assisting to hold the valve 9, connected to said post, away from its seat 7 while 3o being turned one turn and wholly holding said post and valve when being turned more than one turn. This turning movement of the operating-post 11 acts on the end of the elastic tube 6, secured to the post, and twists 3 5 the elastic tube, thereby contracting it. Now

. when the pen and its feeding or supply tube are immersed into ink and the operating-post 11- is turned in the reverse direction the elastic tube will untwist and expand, drawing the 4o ink into the reservoir 23. The turning of the operating-post 11 in the reverse direction is arrested by the pin coming in contact with .the shoulder 22 and in front of the open end of groove 19, which position allows the post 11 to be forced back into the sleeve 1 by the spring 17, thereby seating the valve 9 and hermetically closing the reservoir of. ink.

The supplying of ink to the pen 10 by moving the valve 9 off its seat 7 is accomplished 5o and regulated by drawing the operating-post.

11, to which said valve is attached, out of the sleeve 1 until the pin 2O can be turned forward away from the groove 19 and onto the face of the camv21 the required distance, as

illustrated in Fig. 3, where with the aid of the friction produced by the spring 17 it locks and holds the post when released and where it remains during the time of using the pen,

after which use said post 11 is reversed or turned backwardto the position where it can be forced back into the sleeve 1, as hereinbefore described. It will thus be seen that my improved construction is a constant insurance against the leakage of ink from the reservoir, a feature very desirable vin fountaini ent to any skilled mechanic, and therefore my Vconcealed elastic tubeand enables the user to accurately adjust the delivery ofthe ink to the pen. In the construction shown in Fig. 2 -the cy- 75 lindricalsleeve is in two sections 1 1", and the ink-reservoir consists of similar parts of the pen, as shown in Fig. 1, with the addition` ofsection 1". The end of the shortened elastic tube 6' is hermetically secured tothe end 5' of the section 1" instead ofthe end or sleeve 5 of the pen-holder 2. The outer end of the section 1' is provided with two shoulders 22 22', which serve to limit the turning f the operating-post 11. 35

The male and female screws 15 and 18 are dispensed with. The ink-reservoir is,filled with ink by an ink-Eller through the open end of section 1, opened by the removal of the pen-holder 2; The supply of ink to the pen 10. is accomplished by the same means as that shown and described in Fig. 1. In Fig. 2 the valve is shown open.-

Various other modifications will be apparinvention is not confined to the exact details of construction set forth in the foregoing description and shown in the drawings.

Hereinafter for convenience of description the cylindrical vsleeve 1 or 1' 1" and pen-holder 2, which constitute the body of the pen, will be designated as the body member.

Having now fully described my invention, I claim and desire to secure by Letters Patent-'- 1. In a fountain-pen, the combination with a body member, of an ink-reservoir contained within said body member and having side walls elastically extensible, an operating-post secured to one end of said walls and constituting one end of 'said reservoir, and arranged for both slidingand rotary movements in one end of said body member, and a valve seated within said ink-reservoir and operatively connected with said operating-post to thereby control the flow of ink from said reservoir, as described. f

2. In a fountain-pen, the combination with a body member, of an ink-reservoir contained within said b ody member and having side walls" elastically extensible, an operating-post secured to one end of said walls and constitutf ing one end of said reservoirgand a valve seated within said reservoirand operatively connected with said operating-post to thereby control the fiow ,of ink from said reservoir, as described. f

3. In a fountain-pen, the combination with a body member provided at one end with acamshaped face, of an ink reservoir contained within said body member and having walls I3 IOO IIO

elastically extensible, of a valve seated within said ink-reservoir, and an operating-post arranged for both sliding and rotary movements in said body end, and operatively connected with said valve, and provided with means adapted to engage with said cam-face to thereby controlthe opening and closing movements of said valve, as described.

4. In a fountain-pen, the combination of a body member provided at one of its ends with an externally-located cam-face, an operatingpost arranged in said end for both rotary and sliding movements, and provided with controlling means arranged for engagement with said cam-face, an ink-reservoir contained wi thi'n said body member and having elasticallyextensible walls secured at one end to said operating-post, and a valve seated in the interior of said reservoir and operatively connected with said operating-post, as described.

5. In a fountain-pen` the combination ofv a body member, provided with an externally-located spiral cam-face, 21, and with a longitudinally-directed slot, 19, and a shoulder, 22, with an operating-post, 11, arranged for both rotary and sliding movements in said body end, land vprovided with means, as the pin, 20, adapted to' engage with the slot, 19, for locking purposes, and also to engage with the camface, 21, to thereby control the movement of the post, and a valve seated withinsaid body member and operatively connected with said operating-post, as described.

6. In a fountain-pen, the combination of a body member terminating at one end in a spiral cam-face, and provided at said end with a longitudinally-directed slot, '19, and with an internal thread, 18, an operating-post, 11, arranged 4for rotary'and sliding movements in said body and provided with a threaded portion, 15, adapted for engagement with the internal thread, 18, and also provided with a pin, '20,adapted both for sliding movement in the slot, 19, and for rotary movement against said spiral cam-face, a spring interposed between said operating-post and said body end and adapted to control the sliding movement of said post, an yink-reservoir contained within said body member and having elastically extensible walls secured. at one end to said operating-post and adapted to be thereby extended longitudinally, a'nda valve seated in the interior of'said reservoir andoperatively connected with said operating-post, whereby the operation of said valve is controlled and the ow of ink from said reservoir is regulated, as described.

7 In a fountain-pen, the combination with the body member, of an operating-post arranged for both rotary and sliding movements in one end of said body member, a spring interposed between said post and the interior end of said body member, and adapted to control the sliding movement of said post, an inkreservoir contained within said body member, and provided with elastically-extensible walls secured at one end to said operating-post and a valve seated in the interior of said reservoir opposite to and operatively Y connectedl with said operating-post, as described. l

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN H. oRowELL.

Witnesses:

O. A. PRIOR, S. F. CROWELL. 

